first you need to specify wether anyone of them is duped ... If the 6* Aegon is Duped shine Brother if not take corvus anyway all will get there one day just pick one
If Nick is awakened, I'd go Nick. I absolutely love Doom, but I feel Nick is a bit more valuable. Quake is the best champ in the game imo, but if you can play her right, she doesn't need to go to R5 as much as the rest.
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If the 6* Aegon is Duped shine Brother if not take corvus anyway all will get there one day just pick one
nick as 5 if duped then doom if not the opposite